Chelsea manager Jose Mourinho has said that he will not go into detail about his side's defeat to Stoke City today.
The Blues were 1-0 up through Andre Schurrle's strike, but Peter Crouch made it 1-1 before half time.
Stephen Ireland put Stoke 2-1 ahead, but Schurrle equalised. However, Oussama Assaidi beat Petr Cech in the dying minutes to secure the win for the home side.
"I don't feel very comfortable to tell you exactly what I think about the game," he told BBC Sport.
"I prefer to be simple and pragmatic and say they scored one more goal than us. They won and we lost. I can't go much further than because I can't analyse with you certain aspects of the game.
"It is a concern [conceding many goals recently]. I don't like it, I don't organise my teams to be like this. Sometimes mistakes kill an organisation."
Chelsea are third behind Liverpool on goal difference.
